Explore our premier lineup of heavy construction machinery directly engineered from our state-of-the-art manufacturing plants.
Modern transport infrastructure demands robust, cost-effective, and environmentally sustainable pavement preservation technologies. As a top-tier Seal Coating Equipment Manufacturer, HEM Group (originally founded in 1998 as Xi'an Hongda Communications Technology Co., Ltd. by distinguished professors from Chang'an University) stands at the pinnacle of road engineering design and machinery innovation in China.
Our company was birthed within the academic incubator of highway engineering. By integrating theoretical mechanics, fluid dynamics, and thermodynamic heating models directly into our R&D framework, we have secured numerous national patents in mechanical dynamics, engine power matching, hydraulic transmission systems, and microprocessor-based electronic control technology. Recognizing our tech leadership, the Shaanxi Provincial Department of Science and Technology officially certified us as a national "High-tech Enterprise" in 2006.
To support global supply chains and manage cross-border technical partnerships, we established HME TOP Machinery Equipment Co., Ltd. in 2017. As our dedicated international trade and technical support entity, HME TOP streamlines export documentation, customs engineering, site installations, and global spare parts distribution to over 60 countries across North America, Africa, Southeast Asia, Central Asia, and the Middle East.
Asphalt pavements suffer continuous degradation due to UV radiation, oxidative hardening, water intrusion, and structural shear stress. High-performance seal coating equipment—including intelligent slurry seal pavers, synchronized chip sealers, and computer-controlled bitumen distributors—acts as the primary defense mechanism to extend pavement life cycles by 5 to 10 years at a fraction of full repaving costs.
| Equipment Category | Core Application | Key Engineering Technologies | Material Compatibility | Target Pavement Layer |
|---|---|---|---|---|
| Intelligent Bitumen Distributor | Tack coat, prime coat, seal coating application | Computerized spray volume feedback, pneumatic spray bar control, constant temp heating | Emulsified asphalt, modified bitumen, hot asphalt binder | Sub-base layer, surface sealing |
| Synchronized Chip Sealer | Single/double surface dressing, friction restoration | Synchronous asphalt & aggregate spraying, precision metering gates, hydrostatic drive | Pre-coated aggregates, polymer-modified emulsions | High-friction wear courses |
| Slurry Seal / Micro-Surfacing Paver | Rut filling, waterproofing, texture restoration | Continuous pugmill mixing, micro-processor batching system, hydraulic screed | Quick-set polymer emulsions, graded crushed stone, cement additives | Urban arterials, expressways, runways |
| Bitumen Decanting Equipment | Drummed bitumen melting & bulk transfer | Thermal oil closed-loop heating, exhaust gas waste heat recycling, hydraulic pushers | Drummed hard bitumen, solid asphalt blocks | Plant supply & field logistics |
Our seal coating units utilize closed-loop hydrostatic drives powered by international hydraulic pumps and motors. This guarantees ultra-smooth crawling speeds down to 0.5 km/h, essential for uniform bitumen application and chip distribution without pulsing ripples.
Equipped with triple-overlap nozzle geometry and computer-calculated radar speed matching, our spray bars automatically regulate flow rates regardless of vehicle speed fluctuations, guaranteeing spray error rates under ±1%.
Integrated diesel burners and thermal oil jacketed piping keep asphalt binders at optimal pumping viscosity (160°C – 180°C) without burning or degrading polymer additives during transit or extended operation.
Procuring heavy construction machinery from established Chinese manufacturers offers unmatched capital efficiency, rapid custom modification, and robust manufacturing throughput.
From structural laser cutting, robotic seam welding, and CNC gear machining to hydraulic testing and final painting, 100% of critical manufacturing processes occur in-house across our 5,000m² facility.
We work directly with international contractors and fleet owners to modify chassis dimensions, tank capacities (3,000L to 16,000L), spray widths, hydraulic pump suppliers (Danfoss/Rexroth), and control interfaces in multiple languages.
With an annual capacity exceeding 5,000 machinery units, our lean manufacturing assembly lines maintain short lead times (15–30 days) and ensure 100% long-term availability of low-cost replacement parts.
Procuring machinery across international borders requires strict alignment with localized environmental mandates, engine emission standards, and operational safety codes.
Our engineering team configures machinery power units to match regional regulatory mandates. We integrate Euro Stage V / EPA Tier 4 Final engines for North American and European markets, alongside robust Tier 2 / Tier 3 engines designed for sulfur-heavy fuels commonly used in developing infrastructure projects across Africa, South America, and Central Asia.
To eliminate operational downtime, HME TOP maintains dedicated technical service teams and strategically located spare parts warehouses in Russia, Malaysia, South Africa, Uzbekistan, Ghana, Kenya, Indonesia, and Sri Lanka. Experienced field engineers provide on-site calibration, operator safety training, and 24-hour remote diagnostic assistance.
The road maintenance sector is undergoing a massive shift toward digital automation, eco-friendly emulsion formulations, and smart fleet telematics.
Modern seal coating machinery incorporates real-time IoT sensors that monitor emulsion viscosity, tank temperatures, spray pressure, and GPS-mapped area coverage. This data syncs to cloud management portals, providing contractors with instant job-cost reporting and quality assurance verification.
Environmental regulations are accelerating the phase-out of high-VOC cutback asphalts in favor of polymer-modified water-based emulsions. Our equipment features specialized corrosion-resistant stainless-steel valves and non-clogging pumps tailored for delicate emulsion chemistry.
Our intelligent spray bars feature individual pneumatic nozzle controls linked to ultrasonic edge-detection sensors. This enables seamless, automatic width adjustments when working on winding country roads, city intersections, and tapering shoulders.
HEM Machinery solutions excel across diverse civil engineering and infrastructure environments:
High-speed, large-volume applications using synchronized chip sealers and high-capacity bitumen distributors to restore macro-texture, prevent hydroplaning, and seal micro-fissures across thousands of lane-kilometers.
Precision micro-surfacing and polymer seal coats designed to withstand heavy aircraft wheel loading, resist jet fuel spills, and eliminate Foreign Object Debris (FOD) risk caused by crumbling asphalt aggregates.
Maneuverable road wideners, mini excavators, and compact slurry seal pavers that operate efficiently in tight urban corridors, residential streets, commercial parking lots, and industrial park roadways.
Expert insights on seal coating equipment selection, maintenance protocols, and international sourcing.
HEM Group equipment is actively operated by leading road construction groups, municipal ministries, and mining conglomerates in over 60 countries.
Explore additional specialized machinery engineered for modern pavement rehabilitation and civil works.
HME Machinery